CVE-2009-3639

NameCVE-2009-3639
DescriptionThe mod_tls module in ProFTPD before 1.3.2b, and 1.3.3 before 1.3.3rc2, when the dNSNameRequired TLS option is enabled, does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 client certificate, which allows remote attackers to bypass intended client-hostname restrictions via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-1925-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
proftpd-dfsg (PTS)wheezy, wheezy (security)1.3.4a-5+deb7u3fixed
jessie1.3.5-1.1+deb8u2fixed
jessie (security)1.3.5-1.1+deb8u1fixed
stretch1.3.5b-4fixed
buster, sid1.3.5d-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
proftpd-dfsgsource(unstable)1.3.2a-2low
proftpd-dfsgsourceetch1.3.0-19etch3mediumDSA-1925-1
proftpd-dfsgsourcelenny1.3.1-17lenny4mediumDSA-1925-1

Notes

http://bugs.proftpd.org/show_bug.cgi?id=3275

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